Soot-ejector for steam-boilers.



w. J. BRADLEY. 800T EJECTOR FOR STEAM BOILERS.

lpgggyl y yu APPLICATION FILED FEB- 7. I912; Patented Apr. 10

3 SHEETS-SHEET I.

WITNEEISES I INVENTDH [E] Y, fwfi w ATTEIHNEY W. .l. BRADLEY. 800T HECTOR FOR STEAM BOILERS.

I APPLICATION FILED FEB. 7. 1912- 1,222,177@

Patented Apr. 10, 1917.

3 SHEETS-SHEEI' 2.

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W-J. BRADLEY.

SOOT HECTOR FOR STEAM BOILERS.

Patented Apr. 10, 1917.

APPLICATION FILED FEB- 19I2. 1,222,171.

3 SHEETS-SHEET 3.

INVENTUFI ATF H'NEY WILLIAM J. BRADLEY, 0F TROY, NEW YORK, ASSIGNOB. TO ll-IONARCE STEAM BLOVl/"ER COMPANY OF TROY, NEW YORK, A CORPORATION.

SOOT-EJEGTOR FOR STEAM-BOILERS.

Specification of Letters Patent.

Patented Apr. it), 191?.

To aZZ whom it may concern:

Be it known that I, WI LIAM J. BRADLEY, citizen of the United States, residing at Troy, county of Rensselaer, and State of New York, have invented certain new and useful Improvements in Soot-Ejectors for team-Boilers, of which the following is a specification.

The invention relates to such improvements and consists of the novel construction and combination of parts herelnafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

Figure l of the drawings is a view in side elevation of water-tube boiler provided with my improved soot-ejector.

Fig. 2 is a similar view of the same on an enlarged scale and partly broken away, showing one of the niches in the boilersetting, with a plurality of nozzles arranged in a vertical series in said niche, and means for rotatively moving said nozzles simul taneously.

Fig. 3 is a. cross-section taken on the broken line 3-3 in Fig. 2, through one of the pendulous doors which guards a nozzleopening in the boiler-setting.

Fig. 4 is a vertical section taken on the broken line 47-4: in Fig. 3.

n1g. 5 is a. cross-section taken on the broken line 55 in Fig. 4.

Fig. 6 is a central longitudinal section of one of the nozzle-heads detached.

Fig. 7 is a View in elevation of the inner side of the boiler-setting opposite one of the niches therein, and showing a series of pendulous doors closing the nozzle-openings from said niche into the draft-space of the boiler.

Fig. 8 is a vertical section of the same taken on the broken line 8--8 in Fig. 7

This invention relates more particularly to the type of water-tube boiler wherein the water-tubes are arranged obliquely, and the principal object of the invention is to provide a boiler of such a type with soot-ejecting mechanism which can be easily and economically mounted in the boiler-setting.

A further object of the invention is to automatically protect the soot-ejecting nozzles from the excessive heat of the furnace when the nozzles are not in use.

Other objects will appear in connection with the following description.

in applying a soot-ejector to a \vater-tube boiler of this type, it has been found desirable to employ steam-ejecting nozzles rotatively mounted at one side of the boilersetting opposite the intervals between suc cessive horizontal rows of water-tubes, and rotatively movable in planes parallel with said water-tubes whereby jets of steam or air can be directed across and along the spaces between aiter-tubes; and this has heretofore been accomplished by mounting a plurality of nozzles upon a supply-pipe rotatively supported in an inclined position at right angles to the direction of the watertubes at one side of the boiler-setting.

Such a soot-ejector, if mounted within the boiler-Se tin requires a recess in the setting having walls inclined similarly to said pipe. and it is found in practice that the building of a boilersetting with such inclined recessed walls is complicated and expensive, and requires the services of a highly skilled mason or brick-layer.

In carrying out my invention, I separately rotatively mount upon inclined axes a plurality of nozzles arranged in a vertical series in connection with a vertical supplypipe within a vertical niche in the boilersetting, in a manner calling for no unusual or expert skill on the part of the mechanic installing the device.

Referring to the drawings wherein the invention is shown in preferred form, 1, represents the body of the boiler; 2, the front water-leg; 3, the rear water-leg; and. i, the water-tubes which extend in inclined position from front to rear of the boiler in connection with said water-legs.

The vertical battles, 5, divide the spaces through which the water-tubes extend into three passes in the usual manner.

A. soot-ejector is preferably mounted at the side of the boiler opposite each of said passes. and in Fig. 1, l have shown the boiler provided opposite each pass with a sootejector embodying my invention.

The boiler-setting, (3, is formed with a vertical niche, 7, in its outer side, and with a series of nozzle-openings, 8, extending from said niche through the inner side of the boiler-setting, said openings being opposite the respective intervals between the horizontal rows of water-tubes.

The openings, 8, a1 anged one directly above another, are preferably elongated longitudinally of the boiler-setting, and on inclined lines corresponding with the lines of inclination of the water-tubes.

Fixedly mounted within the niche, 7, is a vertical supply-pipe, 9, connected with a suitable supply of fluid under pressure, as

with the steam-space of the boiler through the pipes, 10, controlled by suitable valves 11.

At points corresponding with the location of the respective nozzle-openings, 8, there are fixed upon the supply-pipe, 9, offsets 12, each forming a bearing for a nozzle, 13, as well as a means for connecting said nozzle with said supply-pipe.

The offset, 12, terminates in a bearing-box, 14, within which an inner offset end, 15, of the nozzle is rotatively mounted upon an axis at right angles to the direction of the inclination of the water-tubes.

The inner nozzle-member, 15, bears upon the packing-ring, 16, against which it is held by means of a coil-spring, 17, within the bearing-box.

The ofiset bearing-end of each nozzle has fixed thereon a beveled gear, 18, in engagement with a beveled gear, 19, fixed upon a vertical shaft, 20, which is rotatively mounted in bearings, 21, upon the bearing-boxes 14.

The shaft, 20, is shown angular in crosssection, and the gears, 19, are formed with cylindrical hubs, 22, which occupy cylindrical bearing-openings in the bearings 21.

The shaft, 20, can be rotatively moved by means of a crank, 23, or in any known manner, and when so moved will cause the several nozzles in the vertical series to be simultaneously moved through arcs in planes parallel with the direction of the water-tubes.

As the nozzles are thus rotatively moved, they are severally caused to traverse an are represented by the dotted line, 2a, the swinging end of a nozzle moving along said are out of the niche, 7, through an opening, 8, to direct its steam-jet across and along the space between the water-tubes, and afterward being swung back through said open ing, 8, into the niche, 7, where it is protected from the excessive heat of the furnace.

All the nozzles in a vertical series within a niche, 7, are thus simultaneously operated.

By rotatively mounting the nozzles upon inclined axes in connection with a vertical supply-pipe and a vertical operating-shaft, I am able to confine the ejecting-apparatus within a comparatively narrow space, making it possible to locate it all within a vertical niche in the boiler-setting, thus greatly simplifying the installation of the apparatus.

By rotatively mounting the nozzles and the operating-shaft, 20, upon offsets from the vertical pipe, 9, the apparatus can be installed or removed as a unit, which greatly facilitates its installation.

As a means for protecting and shielding the ejecti11g-1necl1anism from the excessive heat of the furnace, I have shown each of the openings, 8, closed by a pendulous door,

25, rotatively supported by trunnions, 26,

in bearings in a suitable frame or housing, 27, mounted in the boiler-setting, said doors being severally adapted to swing upon an axis inclined to correspond with the inclination of the water-tubes.

The doors, 25, are adapted to be pushed open upwardly by the swinging ends of the respective nozzles, 13, as the nozzles are swung out through the respective openings, 8, and said doors, 25, are adapted to auto matically close by their own weight when the nozzles are withdrawn into the niche 7 The nozzles, 13, may be of any known form, a preferred form being shown in Figs. 4 and 6, wherein the head of the noz zle is shown provided with a divided outlet 28.

What I claim as new and desire to secure by Letters Patent is:

1. In a soot-ejector, and in combination, a vertical supply-pipe having an offset; a nozzle having an offset rotatively mounted upon said offset on the supply-pipe, said nozzle having an inclined axis of rotation; and means for rotatively moving said nozzle.

2. In a soot-ejector, and in combination, a vertical supply-pipe having an offset; a nozzle having an offset rotatively mounted upon said offset on the supply-pipe; and nozzlerotating mechanism also mounted upon said offset on the supply-pipe.

3. In a soot-ejector, and in combination, a vertical supply-pipe; a plurality of nozzles rotatively mounted in connection with said supply-pipe, said nozzles having inclined axes of rotation; and means whereby said nozzles are rotatively moved upon their respective inclined axes.

4;. In a soot-ejector, and in combination, a vertical supply-pipe; a plurality of offsets therefrom; a plurality of nozzles having offsets rotatively mounted upon the respective offsets on the supply-pipe, said nozzles having inclined axes of rotation; and means mounted upon the respective offsets on the supply-pipe for rotating the respective nozzles.

5. In a soot-ejector, and in combination, a vertical supply-pipe; a plurality of offsets therefrom; a plurality of nozzles having ofisets rotatively mounted upon the respective offsets on the supply-pipe, said nozzles haviug' inclined axes of rotation a verticz l, sha't't mounted in bearings upon otlsets on the supply-pipe; and intermeshing beveled gears on said shaft and on the respective nozzleoffsets.

6. In a soot-ejector, and in combination, a supply-pipe; a plurality of nozzles rotatiiely mounted in coni'iection with said sup ply pipe, said nozzles having inclined axes of rotation; a shatt extendi parallel with said supply pipe; and connections between said shaft and the several nozzles whereby they are rotatii'ely moved upon the respective inclined axes.

In a soot-ejector, and in combination, a boiler-setting provided with an inclined opening communicating with the draft-space oi"- the boiler; a pendulous door rotatiiely supported upon an inclined axis and adapted to automatically close said opening; a nozzle rotatirely movz ble through said opening upon an inclined axis, said nozzle being adapted to engage and automatically open said door; supply-pipe communicating with said nozzle; and means for swinging said nozzle to and fro through said opening,

8. In a soot-ejector, and in combination, a boiler-setting provided with a plurality of inclined openings communicating with the ch'aftspace of the boiler; a vertical supplypipe; a plurality of nozzles rotatively mounted in connection with said supply-pipe opposite the respective openings in the boiler-setting, said nozzles having; inclined axes of rotation; means for rotati'vely moving said nozzles through th respective openings in the boiler-setting; and automatically closing doors for the respective opcnii'igs in the hoilersetting. said doors being severally pendulous on an inclined axis, and adapted to be engaged and automatically opened by the respective nozzles.

9. In a soot-ejector, and in combination, a boiler-setting provided with an outwardly opening rertical niche in its side-wall, and provided with a plurality 01"" inclined openings extending; from said niche to the draftspace of the boiler; a vertical supply-pipe located within said niche; a plurality of ottsets from said supply-pipe; a plurality of nozzles having oilsets rotatively mounted within said niche upon inclined axes upon the respective effects on the supply-pipe opposite the respective openings in the boilersetting; and means for swinging the nozzles through the respective ()PQlTiDgS.

10. In soot-ejector, and in combination, a boiler-setting provided with an outwardly opening vertical niche in its side-wall, and provided with a plurality of inclined openings extending from said niche to the draftspace of the boiler; a vertical supply-pipe located within said niche; a plurality of oft sets from said supply-pipe; a plurality of nozzles having offsets rotatively mounted within said niche upon inclined axes upon the respective ol'tsets on the supply-pipe opposi the respective openings in the boilersetting; a vertical shaft rotatively mounted within said niche; and operating-connections between said vertical shaft and the respective nozzle-otl'sets.

11. In soot-ejector, and in combination, a boiler-setting provided with an outwardly opening vertical niche in its side-wall, and provided with a plurality oi"- inclined openiugs extending from said niche to the draftspace or the boile a vertical supplypipe located within said niche; a plurality of offtrom said sup v-pipe; a plurality of nozzles having 0; ts rotatively mounted within said niche upon inclined axes upon the respective oil as on the supply-pipe 0ppos tc the respective openings in the boilersettiug; a rertica shaft rotatively mounted upon the Supplynpe within said niche; and beyeled gear connections between said shaft and the res acctive nozzle-offsets.

12. In a soot-ejector, and. in combination, a boiler-setting provided with an outwardly o ening vertical niche in its side-wall, and Ruth a vertical series oi inclined openings extendino; from said niche through the boiler-st ting to the draft-space of the boiler; a pendulous door rotatively mounted upon an inclined axis for closing each of said openings; a vertical supply-pipe located within a 'l niche; a plurality of chisets from t e miply-pipe; a plurality of l .rotatively mounted s d niche upon inclined axes upon e I oi on the supply pipe opthe l'QSPGCt'lY'Q openings in the boilersaid nozzles lltli'lll"; members on- 'ith the respective doors to autoopen the same: and means for aid nozzles through the respective 13. in a soot-blmver for water-tube boilers haying inclined tubes, a fixed riser mounted opposite the sides of the tubes, a set of pivoted nozzles connn'unieating with the riser, arranged one above the other in vertical serihs and oscillating about noncoincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation.

14-. in a soot-blower for water-tube boilers having inclined tubes, a fixed vertical riser mounted opposite the sides of the tubes, a set of pivoted nozzles communicating with the riser, arranged one above the other in vertical series and oscillating about non-coincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation.

1-5. In a soot-blower for watertube boilers having inclined tubes, a fixed vertical riser mounted opposite the sides of the tubes, a series of branches leading from the riser,

hollow joints on said branches arranged one above the other in vertical series, and nozzles leading from the joints and oscillating about the axes of the several joints, said axes being non-coincident and substantially at right angles to the dip of the water-tubes, whereby the nozzles follow the dip of the tubes during the blowing operation.

16. In a soot-blower for water-tube boilers having inclined tubes, a riser mounted opposite the sides of the tubes, a set of pivoted nozzles communicating with the riser, arranged one above the other in vertical series and oscillating about non-coincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation.

17. In a soot-blower for water-tube boilers having inclined tubes, a vertical riser mounted opposite the sides of the tubes, a set of pivoted nozzles communicating with the riser, arranged one above the other in vertical series and oscillating about noncoincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation.

18. In a soot-blower for water-tube boilers having inclined tubes, a vertical riser mounted opposite the sides of the tubes, a series of branches leading from the riser, hollow joints on said branches arranged one above the other in vertical series, and nozzles leading from the joints and oscillating about the axes of the several joints, said axes being non-coincident and substantially at right angles to the dip of the water-tubes, whereby the nozzles follow the dip of the tubes during the blowing operation.

19. In a soot-blower for water-tube boilers having inclined tubes, a riser mounted opposite the sides of the tubes, a set of pivoted nozzles communicating with the riser, arranged one above the other in vertical series and oscillating about non-coincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation, and means whereby said riser remains stationary during the blowing operation.

20. In a soot-blower for water-tube boilers having inclined tubes, a vertical riser mounted opposite the sides of the tubes, a set of pivoted nozzles communicating with the riser, arranged one above the other in vertical series and oscillating about noncoincident axes in the general direction of the tubes, thereby following the dip of the tubes during the blowing operation, and means whereby said riser remains stationary during the blowing operation.

21. In a soot-blower for water-tube boilers having inclined tubes, a vertical riser mounted opposite the sides of the tubes, a series of branches leading from the riser, hollow joints on said branches arranged one above the other in vertical series, nozzles leading from the joints and oscillating about the axes of the several joints, said axes being non-coincident and substantially at right angles to the dip of the water-tubes, whereby the nozzles follow the dip of the tubes during the blowing operation, and means whereby said riser remains stationary during the blowing operation.

In testimony whereof, I have hereunto set my hand this 5th day of February, 1912.

WILLIAM J. BRADLEY.

Witnesses:

J. E. DONSBAOH, R. A. LEDERO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

